Sir William Lower was the only son of John Lower, and was born at Tremere, in S. Tudy, about the year 1600.

The Lowers were a very ancient family in Cornwall, seated in S. Winnow parish, and at Clifton, in Landulph, at which latter place lived Sir Nicholas Lower, the brother of John, whilst the eldest brother, Sir William, settled at Treventy, in Carmarthen, having married the daughter and co-heiress of Sir Thomas Pescott, of that place. John had two other brothers knights, Sir Francis and Sir Thomas.

William was not educated at Oxford, but, as Wood says, "spent some time in Oxon, in the condition of hospes, for the sake of the public library and scholastical company." He exhibited a "gay fancy," and a mighty aversion from the dry and crabbed studies of logic and philosophy.

Leaving Oxford, he spent some time in France, where he became a master of the French tongue, and acquired a great admiration for the dramatic compositions of Corneille, Quirault, and Ceriziers, and in after years amused himself with translating some of their plays.

When the troubles broke out in England he took the King's side, and in 1640 was a lieutenant in Sir Jacob Ashley's regiment in Northumberland's army against the Scotch Covenanters, and was then appointed captain, but lost his company, that proved mutinous and deserted. "It was a marvellous thing," says a writer of the time, "to observe the averseness of the common soldiers to this war. Though commanders and gentlemen of great quality, in pure obedience to the King, seemed not at all to dispute the cause or consequence of this war, the common soldiers would not be satisfied, questioning, in a mutinous manner, whether their captains were papists or not, and in many places were not appeased till they saw them receive the sacrament; laying violent hands on divers of their commanders, and killing some, uttering in bold speeches their distaste of the cause, to the astonishment of many, that common people should be sensible of public interest and religion, when lords and gentlemen seemed not to be."

Sr Wm Lower—
Pub May 21 1800 by W Richardson No 31 Strond

In June, 1644, being a lieutenant-colonel in Thomas Blague's regiment and lieutenant-governor of Wallingford, Lower received orders from the King to raise £50 a week from the town of Reading. Lower at once laid hands on the mayor and carried him to Wallingford as a hostage; he then plied the corporation with demands for the money, without which their head would not be restored to them. The corporation, however, did not value their mayor so highly that they were disposed to pay £50 per week for the privilege of having him restored to them. Lower was taken prisoner by the garrison of Abingdon on 19th January, 1645-6, and Charles rewarded him for his zeal by conferring on him knighthood.

He remained in England for nearly ten more years and saw the ruin of the Royal cause, which he did care for, and of the Church, for which he cared not a rush. In 1655 he quitted England and went to Cologne, which was full of refugees, and there he was cheered with the tidings that Oliver Cromwell was failing in health and had not long to live. Leaving Cologne, after a brief residence there, he "took sanctuary in Holland, where in peace and privacy he enjoyed the society of the Muses," says Langhorn.